Steam-hammer-die-securing means.



E. WELANDER. r STEAM HAMMER DIE SECURING MEANS.

APPLICATION FILED SEPT-4. 191-1 Patented Apr. 9, 1918.

lnllmum Eda mil M/eZandei" EDWARD WELANDER, OF DETROIT, MICHIGAN.

STEAM-HAMMER-DIE-SEC URING MEANS.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed September 4, 1917. Serial No. 189,618.

To azz whom it may concern:

Be it known that I, EDWARD VVELANDER, is a subject of the King ofSweden, and a citizen of Sweden, residing at Detroit, 1n the county ofWVayne and State of Michigan, have invented certain new and usefulImprovements in Steam-Hammer-Die-Securing Means; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in means for securing the upper andlower dies of steam and other power hammers against lateral shifting asthe machine is operated. Heretofore, it has been the general policy touse a single rectangular block of metal for this purpose, but experiencehas taught that these blocks soon become worn so that it is necessary tosubstitute new ones. This not only means added expense, but requires aconsiderable length of time. The present invention aims to overcome thedifficulties heretofore encountered, by providing a block of novelconstruction which may be increased in size at any time when it shouldbecome so worn as to render this necessary.

With the foregoing general object in View, the invention resides in thenovel features of construction to be hereinafter fully described andclaimed, the descriptive matter being supplemented by the accompanyingdrawings which form a part of this specification and in which:

Figure l is a side elevation of the two dies of the steam hammer andtheir carrying means, showing the invention applied in dotted lines.

Fig. 2 is a vertical section on the plane of the line 22 of Fig. 1.

Fig. 3 is a horizontal sectional view on the plane indicated by the line33 of Fig. 2.

Fig. 4 is a perspective view of the improved block.

In the drawings above briefly described, the numeral 1 designates thehead of a steam hammer, 2 the anvil thereof, and 3 and 4 the upper andlower dies respectively, said dies having coacting grooves or othershaping means 5 for imparting the requisite shape to the material to beshaped. The head 1 and anvil 2 are provided with longitudinal grooves 6having undercut side walls 7, said grooves receiving therein dovetailribs 8 on the outer faces of the dies 3 and 4 as shown most clearly inFigs. 1 and 2. The usual tapered key 9 is employed for securing the rib8 in groove 6, and said rib and one side of said groove are formed withseats 10 and 11 respectively, the side walls of the seat 11 convergingdownwardly as shown.

As above suggested, it has heretofore been the policy to employ a singlerectangular key in the seats 10 and 11 to prevent shifting of the dies 3and 4. No provision has been made, however, for compensating for thewear on the key and the walls of its seat, as the tendency of the diesto shift, is prevented by said key. By the use of the present invention,however, wear may be easily taken up so that the coacting grooved sidesof the two dies, or other formations with which said dies may beprovided, may at all times be made to properly engage.

The improved key is in the form of a substantially rectangular block ofmetal 12, two of the adjacent corners of said block having right angularnotches 13 and 14, the latter being of greater width than the former.Both notches have inclined rear ends 15, the inclination of whichcorresponds to that of the undercut side walls 7 and rib 8, and as shownmost clearly in Fig. 4, said notches open through the opposite sides ofthe block 12, through the top and gpttpgm thereof, and through one endof said The portion of the block 12 beyond the notches 13 and 14, isadapted for reception in the seat 11, and in order that said portion mayproperly engage said seat, the sides thereof are slightly inclined sothat a substantially wedge shape is imparted to the block.

The reduced end portion of the block 12 is received in the seat 10, saidportion being of considerably less width than said seat. The difference,however, is made up by a filler block 17, which is receivable in thenotch 14, said block 17 being of less width than the notch as shownclearly in Fig. 4. The endwise thrust on the dies, is received by theblock 17 of the two blocks 12, one of said blocks being employed foreach die as is shown in Figs. 1 and 2. By this provision, therefore, itwill be obvious that whenever wear should cause these dies to shift outof proper alinement, it is simply necessary the device.

that within the scope of the invention as to remove the block 17 andsubstitute a new one, which may 1n some cases, if necessary, be ofgreater slze than the original. As

wear takes place in the seat 11, suitable fill-- ing plates 11 may beinserted between the block and the walls of said seat. (See Fig.1.)

From the foregoing, taken in connection with the accompanying drawing,it will be obvious that although my invention is of simple andinexpensive nature it will be highly efiicient for the purpose intendedand will prevent the loss of time and material now required insubstituting a new key or block for'one which has become so worn as tobe inefiicient. Since probably the best results are obtained from thespecific construction shown and described, such construction constitutesthe preferred form of I wish 1t understood, however,

claimed, numerous minor changes may be made without affecting theprincipal advantages.

I claim 1. Ameans for securing power hammer dies to their supportingbases, comprising a substantially rectangular metal block having in twoof its adjacent corners a pair of right angular notches opening throughthe opposite sides of the block through the top and bottom thereof, andthrough one end, said notches extending approximately half the length ofthe "block and having inclined ends, the 5 sides of the block beyond thenotches being slightly inclined to impart a substantially wedge shapefor approxi: mately half the length of the block, and a filler blockreceivable in the wider notch and having an inclined inner endcontacting with the end "thereof.

2 A structure as specified in claim 1, in v being disposed in saidlarger seat and the other end of said block together with said fillerblock being disposed in the other seat, the inclined ends of saidnotches being flush with the adjacent undercut wall of said groove.

' In testimony whereof I have hereunto set my hand in the presence oftwo subscribing witnesses. v V

EDWARD WELANDER. \Vitnesses:

ANTHONY J. PoDwYsooKI, DOMINIK 'SCRENOCK.

Copies of this patent may be obtained for five cents each, by addressingthe '=Commiss'ioner of Patents,

' Washington, .D. C. Y

